U.S. Environmental Protection Agency. Enhanced coagulation and enhanced precipitative softening guidance manual.
Chicago (17e ed.) BronvermeldingU.S. Environmental Protection Agency. Enhanced Coagulation and Enhanced Precipitative Softening Guidance Manual.
MLA (9e ed.) BronvermeldingU.S. Environmental Protection Agency. Enhanced Coagulation and Enhanced Precipitative Softening Guidance Manual.
Let op: Deze citaties zijn niet altijd 100% accuraat.